Chiari Malformation

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Chiari Malformation


Advanced Chiari Malformation Surgery and Care


A Nemours expert on Chiari malformations examines young girl.

A Chiari (pronounced “key-AR-ee”) malformation is when part of the brain extends outside the skull into the spinal canal (the upper part of the spinal cord). Children with milder forms may not have any symptoms, but those with more severe forms may have a wide range of symptoms. A Chiari malformation can be congenital (present at birth) or acquired (occur over time).

At Nemours, our goals in treating a Chiari malformation are to relieve any symptoms, reduce pressure on the brain, and improve your child’s quality of life.

Learn More About Chiari Malformation  

Types of Chiari Malformation We Treat

Types of Chiari Malformation We Treat


We treat all of the different types of Chiari malformation in children. That includes Chiari malformation type I (the most common form, which is milder and may not require treatment) as well as Chiari malformation type II (sometimes called “classic Chiari malformation” or “Arnold Chiari malformation,” which usually only occurs in kids with spina bifida). We also treat the more rare Chiari malformation types III and IV.

Services We Offer for Chiari Malformation

Services We Offer for Chiari Malformation


Our pediatric neurosurgeons, neurologists and neuroradiologists (doctors who specialize in imaging of the brain) are experts at recognizing the different signs and symptoms of Chiari malformation in children. We work together to provide a range of diagnostic and treatment options for kids with Chiari malformation, which may vary depending on the location you visit and the doctor your child sees:

We may also recommend limiting certain activities that may make symptoms worse. Fortunately, symptoms usually don't get worse and surgery isn't necessary for kids with milder forms. And most children with less severe types of Chiari malformations do very well and grow up to be active kids and independent adults. For children with no symptoms, we take a conservative approach. It’s called “watchful waiting,” which really means no treatment is necessary and we schedule regular check-ups to monitor your child’s condition. 

Why Choose Us for Chiari Malformation

Why Choose Us for Chiari Malformation


Using proven treatments that have the least amount of side effects, we’ll first address your child’s immediate needs and then develop a plan for further care. If your child needs surgery, our highly skilled neurosurgeons are experienced in performing endoscopic (minimally invasive) surgery for smaller incisions and faster healing. 

We also offer:

  • world-class facilities featuring the most advanced diagnostic techniques and equipment available
  • customized treatment plans based on research and commonly accepted best care practices
  • fully equipped neurosurgery operating rooms
  • innovative surgical techniques that minimize surgery risks, recovery time and pain

Whether your child has Chiari malformation type I (also called “Chiari I malformation”) or a more rare form, our neurosurgeons will take the time to listen to your concerns and give your child personal, thorough, medical and surgical care.

Regional Chiari Malformation Highlights 

Services, programs and care teams differ at each location. Call for details.

Best children's hospital for neurosurgery

We offer complete Chiari malformation care for kids at Nemours/Alfred I. duPont Hospital for Children (Wilmington, Del.), named one of the best children’s hospitals in the country for neurology and neurosurgery by U.S. News & World Report.

We offer complete Chiari malformation care for kids at Nemours Children’s Hospital (Orlando) and select Nemours Children’s Specialty Care satellite locations.

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At Nemours, we’re actively researching new approaches for childhood disease prevention, diagnosis and treatment.

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Learn more about your child’s medical condition from the experts at Nemours’ KidsHealth.